Home / 378,279.21-522,022.16-206,194.04

Finding the Fourth Proportional to 378,279.21, 522,022.16 and 206,194.04

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Solution

The fourth proportional to 378,279.21, 522,022.16 and 206,194.04 is: 284,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,279.21 : 522,022.16 = 206,194.04 : x
  2. Step 2: Convert to fraction form
    378,279.21/522,022.16 = 206,194.04/x
  3. Step 3: Cross multiply
    378,279.21x = 522,022.16 × 206,194.04
  4. Step 4: Simplify right side
    378,279.21x = 107,637,856,045.30
  5. Step 5: Solve for x
    x = 107,637,856,045.30/378,279.21
  6. Step 6: Final answer
    x = 284,546.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.